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How Coupang's Data Breach Became a US-South Korea Diplomatic Crisis

Written by Content Team | Apr 26, 2026 4:18:25 AM

What started as a corporate data breach has escalated into a full-blown diplomatic standoff. South Korean e-commerce giant Coupang disclosed in November that a former employee stole an internal security key, exposing data from 33.7 million users. Seoul responded aggressively — raiding headquarters, launching tax audits, and summoning executives. CEO Bom Kim refused to appear.

Now Washington is reportedly threatening to pause high-level defence talks, including nuclear submarine cooperation, unless South Korea backs off Kim. Fifty-four Republican lawmakers called Seoul's response a "whole-of-government assault." Coupang has spent over $11 million lobbying Washington since 2021. Analysts warn the alliance may be approaching a breaking point.

Source: The Guardian